What is Cock Grind?
1.
When two men are having intercourse with a female simultaneously, causing their cocks to shafe against each other during double penetration.
Damn Meric, I am pretty sure we just cock grinded on that bitch we just slammed.
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1.
A unit of measurement similar to a man-hour, but taking place in Las Vegas and involving more hookers.
Note: Rainman-Evenings are typic..